On Tue, Feb 7, 2012 at 4:09 PM, Orit Alul <orit.a...@mediamind.com> wrote:
> Hi, > > I'm using freelist_count pragma to test whether my sqlite db needs > vacuuming. > I'm running intensive inserts and deletes to the DB very often. > I run the freelist_count pragma periodically and I get different values > every time - sometimes I get large number and sometimes I get 0 or 1. > Does this makes sense? How can it be explained? > When you delete things, that frees up space in the database file. The freed space is added to the freelist. So between iteration 1 and iteration 2 below, you must have had a net deletion of 40011 pages worth of data. > > For example: > Iteration 1: > Page_count: 17234731 > Freelist_count: 1 > > Iteration 2: > Page_count: 17498568 > Freelist_count: 40012 > > Please advise, > Thanks, > Orit > > > > [Creative Zone by MediaMind]<http://feeds.mediamind.com/CreativeZone> > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > -- D. Richard Hipp d...@sqlite.org _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
